Creation of nanofiber-based porous thin-film acoustic materials

以高分子材料和溶胶-凝胶前驱体为原料，采用静电纺丝法制备了纳米纤维非织造布；研究了它们的结构形态和物理性质对声学性能的影响。纳米纤维基非织造布的吸声性能较好，且直径较小。制备的平均直径小于1 μm的纳米纤维无纺布片具有体积小、厚度薄、重量轻等特点，是一种很有前途的声学材料。

Nanofibrous nonwoven sheets were prepared by electrospinning from polymeric materials and sol-gel precursors; and the influences of their structural morphologies and physical properties on the acoustic properties were investigated. The nanofiber-based nonwoven sheets with a smaller diameter showed better acoustic absorbency. The prepared nanofibrous nonwoven sheets with an average diameter less than 1 μm are promising acoustic materials with the characteristics: small, thin, and light weight.